Bernardi, Fabrizio, Maria Grazia Ciaccio, Barbara Palombo, and Graziano Ferrari. “ Bernardi Et Al”. Annals of Geophysics 59, no. 3 (July 15, 2016): S0324. Accessed December 2, 2021. https://www.annalsofgeophysics.eu/index.php/annals/article/view/7112.